baltur TBG 45 ME Manual De Instrucciones página 16

E DETAIL OF GAS FEED REGULATOR THROTTLE
VALVE WITH DUNGS SERVOMOTOR
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A Gas throttle valve position reference index
G
B Gas modulation servomotor
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S
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A
B
STARTING UP AND REGULATION WITH METHANE
1) If not already done at the moment of connecting the bur-
ner to the gas pipeline, it is indispensable to carry out a
purge of the air contained in the pipeline. As a precau-
tion, special care should be taken and doors and windows
should be opened. Open the pipe union on the pipeline
situated near the burner and then open a little the gas
cut-off cock (or cocks). When the characteristic odour of
gas can be smelled, close the cut-off cock. Wait until the
gas present in room has dispersed, and then reconnect
the burner to the gas pipeline. Subsequently, re-open the
gas cut-off cock.
2) Check that there is water in the boiler and that the sy-
stem's gate valves are open.
3) Check, with absolute certainty that the discharge of com-
bustion products can take place freely (boiler and chim-
ney lock-gates should be open).
4) Make sure that the voltage of the electric line to which the
burner is to be connected,corresponds to that required by
the burner and that the electrical connections (motor and
principle line) have been prepared to match the voltage
rating available. Also check that all the electrical connec-
tions carried out on the spot are in accordance with our
electric wiring diagram.
5) Make sure that the combustion head is long enough to
enter the furnace to the extent specified by the boiler ma-
nufacturer. Check that the device which regulates the air
on the combustion head is in the position considered ne-
cessary for the fuel delivery required (air passage betwe-
en the disk and the head should be considerably reduced
when the fuel delivery is reduced; on the other hand, when
the fuel delivery is fairly high, the air passage between the
disk and the head should be relatively open). See Chapter
"Air Regulation on the Combustion Head".
6) Apply a manometer with an adequate scale (if the entity of
pressure forecast allows it is preferable to use a column
of water instrument, do not use a pointer instrument for
moderate pressure) to the pressure plug on the gas pres-
sure switch.
With the I/O (22) switch on the control panel switched to "O"
7)
(0002935870n1) and the master switch turned on, manually
close the remote control switch and check that the motor revol-
ves in the correct direction. If necessary, exchange the position
of the two cables in the line that feeds the motor in order to
invert the rotation direction
8) Now insert the switch on the command panel. The con-
trol box receives voltage in this way and the programmer
turns on the burner as described in Chapter "Description
of Operations". To adjust the burner see the "MPA 22"
electronic cam instructions in the attached manual code
0006080905.
9) After adjusting the "minimum", (P1) bring the burner to-
wards maximum via the controls on the MPA 22 keypad.
(see MPA 22 electronic cam instructions in the attached
manual code 0006080905).
10) We recommend that you carry the out combustion tests
with the appropriate instrument at all intermediate points
in the modulation range (from P1 to P9); also check the
gas flow delivery rate via the meter. It is essential to check,
with a suitable instrument, that the percentage of carbon
monoxide (CO) present in the fumes does not exceed the
limit set by regulations at the time of installation."
11) Now check automatic mode working of the modulation
(see "MPA 22" electronic cam instructions in enclosed
manual code 0006080905). In this mode the equipment
receives the signal from the electronic modulation adju-
ster RWF 40, if the burner is modulating version, or from
the thermostat or the pressure switch second stage if the
burner is progressive two stage.
12) The air pressure switch has the job of bringing the con-
trol box to a safety shut down if the air pressure is not at
the correct value. Therefore, the air pressure switch must
be regulated in such a way as to intervene by closing the
contact (foreseen to by closed while working) when the air
pressure in the burner has reached a sufficient level. The
pressure switch is self-controlled and therefore it must
close the contact (fan stops and consequently there is an
absence of air pressure in the burner) if it does not, the
control box will be inserted (the burner remains at a stad-
still).It must be specified that if the contact is not closed
during working (insufficient air pressure), the control box
will carry out its cycle, but the ignition transformer will not
be inserted and the gas pilot valves will not open. Con-
sequently, the burner will go to "shut down". Check that
the air pressure switch functions properly with burner at
minimum delivery, increase the regulating value until it re-
aches intervention point and the burner should go to shut
down. To unblock the burner, press the special push-but-
ton and return the pressure switch regulator to a sufficient
value in order to measure the air pressure existing during
the pre-ventilation phase.
13) The pressure switches which control the gas pressure
(minimum and maximum) have the job of stopping the
burner functioning when the gas pressure is not within
the values specified. From the specific functions of the
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